Multiple choice

Metamorphosis in frog is hastened by which of the following?

  1. Thyroxine

  2. Adrenaline

  3. Glucagon

  4. Insulin

  5. -
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Thyroxine is a hormone that is produced by the thyroid gland. In humans, this hormone controls metabolism and shedding. In amphibians (not just axolotls), it stimulates metamorphosis. Metamorphosis can be induced by giving the salamander thyroxine, but a more convenient alternative is to add iodine to the water.

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